Sure, we see quite a few plotters and other motion machines, but the one from [DAZ Projects] has the virtual of looking dead simple. The Arduino and CNC shield are old hat, of course. But some 3D ...

That and an Arduino can make a simple and easy plotter. Just ask [JimRD]. You can also watch it do its thing in the video below. Of course, servos aren’t usually what you use in a plotter.

These fluctuations in skin conductivity are displayed on the Arduino IDE's Serial Plotter, and indicated by the three LEDs. The green lights up when the conductivity is in the person's normal ...